71904A 1 Mercruiser COVER, WATER INLET

Table 1
Diagnostic Trouble Codes
J1939 Code CDL Code Code Description Comments
100-3 100-3 Engine Oil Pressure Sensor : Voltage Above Normal The Electronic Control Module (ECM) detects the following conditions:
The signal voltage from the engine oil pressure sensor is greater than 4.8 VDC for more than 8 seconds.
The warning lamp will come on. The ECM will log the diagnostic code. The ECM will set data for engine oil pressure to the default value. The default engine oil pressure is 600 kPa (87 psi). The electronic service tool will display "Voltage Above Normal" on the status screens.
100-4 100-4 Engine Oil Pressure Sensor : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the engine oil pressure sensor is less than 0.2 VDC for more than 8 seconds.
The ECM has been powered for at least 2 seconds.
The warning lamp will come on. The ECM will log the diagnostic code. The ECM will set data for the engine oil pressure to the default value. The default engine oil pressure is 600 kPa (87 psi). The electronic service tool will display "Voltage Below Normal" on the status screens.
157-3 1797-3 Fuel Rail Pressure Sensor : Voltage Below Normal The ECM detects the following conditions:
The signal voltage for the fuel rail pressure sensor is more than 4.7 VDC for 0.6 seconds.
The warning lamp will flash. The ECM will log the diagnostic